Pi-hole doesn't seem to work if using Google Chrome

[Jacques]

Pi-hole doesn't seem to work if using Google Chrome;

I tested the speedtest.net page: on firefox, all advertisements disappear when pi-hole is active.

On the other hand on Google Chrome, it continues to appear

I think google chrome uses its own dns servers which bypasses pi-hole.

Does anyone have a solution to force the removal of ads on Google Chrome?

[JoeP]

Chrome has support for secure DNS. I’m not sure if it defaults to enabled. You can check the setting under Settings - Privacy and security - Security

[LilRedDog]

So, I do not use Chrome (I use Brave); but I installed it on a PC, just for this, and tried speedtest.net. Secure DNS was enabled by default. I tried speedtest.net (Secure DNS was enabled by default):

No ads.
I even let the PC get the DNS server from Pi-hole instead of setting it manually in its network settings. No ads.
So I used my iPhone as a hotspot and, ads.

Are you using a Chromebook? Are you using a router behind your modem?

[firdaus]

Just block clients from accessing DoH to prevent this kind of issue

https://raw.githubusercontent.com/Sekhan/TheGreatWall/master/TheGreatWall.txt